Home / 31,455.18-43,408.44-17,308.08

Finding the Fourth Proportional to 31,455.18, 43,408.44 and 17,308.08

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Solution

The fourth proportional to 31,455.18, 43,408.44 and 17,308.08 is: 23,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.18 : 43,408.44 = 17,308.08 : x
  2. Step 2: Convert to fraction form
    31,455.18/43,408.44 = 17,308.08/x
  3. Step 3: Cross multiply
    31,455.18x = 43,408.44 × 17,308.08
  4. Step 4: Simplify right side
    31,455.18x = 751,316,752.20
  5. Step 5: Solve for x
    x = 751,316,752.20/31,455.18
  6. Step 6: Final answer
    x = 23,885.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.